The heights of 430 NBA players were listed on team rosters at the start of the 2012-2013 season. The heights of basketball players have an approximate normal distribution with a mean of 79 inches and a standard deviation of 3.89 inches.
This current NBA All-Star, Steph Curry, is listed at 85 inches tall. Calculate and enter his z-score with 3 decimal places.
Please provide step-by-step instructions.